Officers arrested 12 people on suspicion of offenses ranging from possessing controlled substances and firearms to resisting arrest. Some of those arrested were taken into custody on outstanding warrants.

Antioch Police Chief Allan Cantando announced the arrests on the department's Facebook page.

"Collectively," he wrote after thanking his department, the Sheriff's Office and the community, "we are all making a difference."

Such police sweeps have become more routine since city officials authorized the use of a crime suppression unit in June after a stretch of summer violence. Also, police have become a bigger presence in some of the city's more notorious neighborhoods.